Reactivity Series and Metal Reactions

What is the position of Hydrogen in the reactivity series?

• Between Iron and Lead

• Between Lead and Copper

• Between Zinc and Iron

• Between Aluminium and Zinc

Which process involves using electricity to extract metals?

• Electrolysis

• Reduction

• Oxidation

• Filtration

Which of the following is a characteristic of metals that can be extracted with carbon?

• Less reactive than carbon

• More reactive than carbon

• Non-metallic

• Gaseous

What is produced when hot air reacts with coke in the blast furnace?

• Carbon monoxide

• Carbon dioxide

• Water vapor

• Methane

What is the chemical equation for the conversion of carbon dioxide to carbon monoxide?

• CO₂(g) + C(s) → 2CO(g)

• CO₂(g) + O₂(g) → 2CO(g)

• CO₂(g) + H₂(g) → 2CO(g)

• CO₂(g) + N₂(g) → 2CO(g)

What is the state of carbon in the reaction with oxygen in the blast furnace?

• Liquid

• Gas

• Solid

• Plasma

What is the product when iron(III) oxide reacts with carbon?

• Iron and carbon monoxide

• Iron and carbon dioxide

• Carbon and oxygen

• Iron and oxygen

What is the main purpose of the blast furnace in this process?

• To oxidize iron

• To reduce iron(III) oxide

• To produce carbon dioxide

• To melt iron

What happens to positively-charged ions during electrolysis?

• They move to the positive electrode and are oxidized.

• They move to the negative electrode and are reduced.

• They remain in the solution and do not change.

• They move to the negative electrode and are oxidized.

Which electrode do negatively-charged ions move towards during electrolysis?

• Anode

• Cathode

• Electrolyte

• Power source